BOARD OF MANAGEMENT & EXPERTS

PT Kalimasada Nusantara Pratama

Ir. Wiku Padmonobo, FAusIMM

Managing Director

Head of Metallurgy Division Perhapi (Indonesia Mining Professional Association) as well as Pertamisi (Indonesia Silica Mining & Industry Association). Also deputy head of National Standard for Mineral and Coal Industrial Testing - Technical Commission.
With 30+ years of experience in mining and metallurgy, Wiku has led consulting, operations, and policy input for gold, silver, copper, silica sand, lateritic nickel, iron, iron sand, zircon, tin, bauxite projects.
Trusted by ministries and industry partners, he brings both technical depth and strategic vision to PT Kalimasada Nusantara Pratama.

Senior Principal Metallurgist and Process Engineering

30 Years experience professional metallurgical and process engineer (MIE, CPEng, MAusIMM) and project manager (MBA).
Focused on delivery of technically innovative and challenging projects in the Australian and international context, on REE, Copper-Gold, Base Metal, SX-EW.
Experience and training in all main areas encountered in the development of small to medium mining projects and management of all stakeholders.

Senior Principal Metallurgist and Mineral Process Engineering

Mining and mineral processing professional with 30 years' experience in the heavy minerals, iron sands, magnetite, titanomagnetite, dredging and alluvial gold industries both within Australia and internationally.
Tertiary qualified with a Bachelor of Science in Chemistry with post graduate qualifications in Metallurgy and Business Management.
Significant mining, operating and project management experience in most facets of the industry including dredging, processing, exploration, resource development, engineering design, construction, commissioning, pilot plants, mine rehabilitation, due diligence and feasibility studies as well as a knowledge of alluvial gold mining and processing.
Over the past several years have worked predominantly as a project development consultant on a variety of projects in Sierra Leone, North Korea, Indonesia, Malaysia, Vietnam, Ecuador, Peru, New Zealand, Papua New Guinea and Chile.
Previous roles have also included senior management and operational roles in several of the world's largest mineral sands mining operations as well as mine management roles with BP Minerals Indonesia, general manager of an industrial minerals company and senior mining consultant for KPMG.

Principal Geologists

Experienced in exploration and resource evaluation, our senior geologists have worked with major mining companies, ensuring accurate reserve estimation and sustainable resource development.

Principal Mining Engineers

Specialists in mine design, planning, and operations, open pit and underground.
Our engineers provide practical solutions for projects ranging from 100 to 1000 tph ore throughput, with proven track records in large-scale operations.

Principal Metallurgists

Experts in mineral processing and metallurgy, our metallurgists deliver cost-efficient and innovative solutions, integrating global best practices with local realities.

Process & Operations Management

Focused on plant design, commissioning, and optimization, they ensure smooth and efficient processing operations, backed by years of experience in international mining projects.

Maintenance Planning

The main objective of maintenance planning is to maximize equipment availability and production output while minimizing operational costs, safety risks, and unexpected downtime.
It achieves this by transitioning operations from reactive fixes to proactive, scheduled asset care.

Process Maintenance

The main objective of a Process Maintenance is to maximize equipment reliability and plant uptime while ensuring the safety of personnel.
They achieve this by shifting maintenance from reactive to proactive strategies, optimizing maintenance costs, and enforcing strict environmental and legal compliance.

E&I Engineering

Electrical and Instrumentation (E&I) systems act as the central nervous system and lifeblood of the operation.
Their core objectives are to ensure absolute personnel safety, optimize resource extraction and product recovery, maximize energy efficiency, and automate processes to reduce costly downtime and human exposure to hazards.

Department Scope

The main objective of a mining maintenance department is to maximize equipment availability and reliability while controlling costs and ensuring safety.
In harsh, continuous mining and processing environments, maintenance teams prevent catastrophic failures, extend machinery lifespan, and ensure operations run smoothly and profitably.

Supply Chain Management (SCM)

Providing reliability and efficiency in equipment maintenance and supply chain operations, this team ensures projects run on time and within budget.